QGroundControl v5.0 - Release Candidate 1

QGC 5.0 Release Candidate 1 is now available for testing. Please help us out with testing this before the release goes official:

• Discussion on 5.0 testing and problems found should happen here: #12806
• Documentation for the version 5.0 can be found here: https://docs.qgroundcontrol.com/master/en/qgc-user-guide/index.html. Note: The docs for 5.0 have not yet been branched. So the 5.0 docs are the daily build docs.
• A very non-comprehensive list of new features is here: https://docs.qgroundcontrol.com/master/en/qgc-user-guide/releases/daily_build_new_features.html